Machine for making butter-boxes



(No Model.)

I. E. SMITH. MACHINE FOR MAKING BUTTER BOXES. No; 544,775.

Patented Aug. a0, 1895.

UNITED STATES PATENT OFFICE. I

FRED E. SMITH, OF MOSCOW, VERMONT.

MACHINE FOR MAKING BUTTER-BOXES.

SPECIFICATION forming part of Letters Patent No. 544,7 75, dated August 20, 1895.. Application filed November 27,1894. Serial no. 530,156. (No model.)

To all whom it may concern.-

Be it known that I, FRED E. SMITH, a citizen of the United States, residing at Moscow, in the county of Lamoille and State of Vermont, have invented certain new and useful Improvements in Machines for Making Butter- Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 7

This invention has reference toa pressingmachine for use in the construction of butterboxes and similarlight packages whose parts are dovetailed together at the corners, the object being to provide mechanism for quickly pressing the parts of such boxes tightly together at the joints; and theinvention therefore consists in the construction, arrange ment, and combination of parts, substantially as will be hereinafter described and claimed.

In the annexed drawings, illustrating my invention, Figure 1 is a front elevation of my improved butter-boX-making machine. Fig. 2 is a vertical section of the same. Fig. '3 is a transverse vertical section on the line 3 3.

of Fig. 2.

Like letters of reference denote like parts in all the figures.

The main frame of my improved machine consists, essentially, of the parallel upright posts A A, having the foot-pieces a a, which rest on the floor or ground and keep the posts erect, said posts being connected together by the'horizontal girders B and B. Between the horizontal girders B B are situated two parallel vertical girders O O, which are properly framed into the girders B B; also there is another platen or bar D, which connects the girders O O, and serves asa bed on which the parts of the box rest when being assembled together and pressed under the action of the machine.

rod 0, that passes through the lower bar F. A rod 19 'connects with the upper bar F and passes upward through the girder B,the part of the rod 1) above the girder B being provided with a spring 12 which is tensioned between the girder B and a nut b on the end of rod b, and which acts normally, therefore, to draw the said movable frame upward and to return it to its upper position after it has been temporarily depressed by the action of the operators foot upon treadle G. Thus it will be seen that with this arrangementI provide a movable part (the upper bar F) which may descend at times toward the bed D, whenever the operator so desires, for the purpose of compressing together'sueh parts of the box as may rest on bed D.

On the right-hand end of the bed D is a vertical plate I, which is fixed against the right hand girder O, and on the left-hand end of bed D is a similar vertical plate I, which is laterally movable toward the plate I.

J denotes a cam which is mounted on a bolt passing through the left girder C. This cam acts against the movable plate I. It has an arm j, to which is connected the upper end of a vertical rod d, the lower end of which is attached to a horizontal bar H, that carries a treadle H; also a rope passes from the camarin j upward around the pulley e, and is provided at its other end with a depending weight K. When the operator presses on the treadle H, the cam J will be rotated and the movable plate I moved, and when the operator releases his foot the cam J will, through the action of the weight K, be restored to its former position.

The operation of the machine will be easily understood. One of the sides of the box is first laid flat upon the bed D, and the two ends of the box are placed in vertical positions at each end of this side and upon it, as shown in Fig. 2. The operator by pressing uponflthe treadle G then actuates the movable frame, and causes the upper bar F thereof to descend upon the vertical end pieces of the box and cause the dovetailed edges of these .ends to engage the corresponding dovetailed edges of the side pieces. The three parts of the box thus connected together are now removed from the press and the bottom of the box inserted thereinto, it beingcrozed to fit the sides and ends. The partially-constructed box is then replaced into the press in the same position as before and the other side is added thereto, it being placed in horizontal position supported upon the two ends, after which the treadle G is then operated and this last side caused to dovetail with the ends. The box has now been pressed together sidewise. The operator Will now operate the treadle 11, thereby actuating the cam J and pressing all the dovetailed joints of the box closely together endwise.

The'main frame is preferably provided with a horizontal shelf A to support the loose parts of the boxes before they are assembled together.

There are many details of construction that are susceptible of change or modification which may be made Without departing from the principle of the invention, and therefore Witnesses:

J. 13. HYDE, J. W. SMITH.

FRED E. SMITH. 

